I recently purchased a 65 inch Roku Pro Mini-Led QLED with a 120Mhz refresh rate.
I was about to send it back because I wasn't pleased with the amount of motion blur using the Spectrum streaming app, I have a pretty awesome Spectrum bundle price wise.
I am trialing YouTube TV and now I am likely going to keep the TV. The Spectrum app sucks on higher end TV's, it's probably not helped by the way Spectrum does their streaming vs how YouTube does their streaming.
Not concerned about the privacy issues, because all the other smart platforms are just as bad if not worse, and it certainly isn't going to get any better using YouTubeTV . . . it simply is what it is.
The Mini-LED QLED is good, but it's not OLED good, but it was on sale at a good price so I am just rolling with it for now. I prefer the Roku platform for its simplicity, and all the other Roku TV's available now are 60Hz native refresh rates until you get into the new line of high end Sharp's.